# NT / RIKEN Seminar

## "Quantum Chaos, Wormholes and the Sachdev-Ye-Kitaev Model"

#### Presented by Jacobus Verbaarschot, Stony Brook University

Friday, February 22, 2019, 2:00 pm — 2-38 CFNS Seminar Room

The Sachdev-Ye-Kitaev (SYK) model has a long history in nuclear physics where its precursor was introduced as a model for the two-body nuclear interaction to describe the spectra of complex nuclei. Most notably, its level density is given by the Bethe formula and its level correlations are consistent with chaotic motion of the nucleons. Recently, this model received a great of attention as a solvable model for the quantum states of a black hole, exactly because of these properties. In this lecture we introduce the SYK model from a nuclear physics perspective and discuss its chaotic nature and its relation with black hole physics. We end with a summary of recent work on two SYK models coupled by a spin-spin interaction as a model for wormholes.

Hosted by: Niklas Mueller

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